Finding the Fourth Proportional to 78,772.38, 108,708.52 and 42,964.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,772.38 : 108,708.52 = 42,964.34 : x
2. Step 2: Convert to fraction form
   78,772.38/108,708.52 = 42,964.34/x
3. Step 3: Cross multiply
   78,772.38x = 108,708.52 × 42,964.34
4. Step 4: Simplify right side
   78,772.38x = 4,670,589,814.18
5. Step 5: Solve for x
   x = 4,670,589,814.18/78,772.38
6. Step 6: Final answer
   x = 59,292.23